9922430381 has 2 divisors, whose sum is σ = 9922430382. Its totient is φ = 9922430380.

The previous prime is 9922430321. The next prime is 9922430387. The reversal of 9922430381 is 1830342299.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5923765156 + 3998665225 = 76966^2 + 63235^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9922430381 is a prime.

It is a super-2 number, since 2×9922430381² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9922430387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4961215190 + 4961215191.

It is an arithmetic number, because the mean of its divisors is an integer number (4961215191).

Almost surely, 2^9922430381 is an apocalyptic number.

It is an amenable number.

9922430381 is a deficient number, since it is larger than the sum of its proper divisors (1).

9922430381 is an equidigital number, since it uses as much as digits as its factorization.

9922430381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 9922430381 is about 99611.3968429316. The cubic root of 9922430381 is about 2148.8496013328.

The spelling of 9922430381 in words is "nine billion, nine hundred twenty-two million, four hundred thirty thousand, three hundred eighty-one".